Revision 327e6e57
Von Moritz Bunkus vor fast 14 Jahren hinzugefügt
| SL/Auth/DB.pm | ||
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package SL::Auth::DB; |
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use strict; |
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use Carp; |
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use SL::Auth::Constants qw(:all); |
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use SL::DBUtils; |
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use strict; |
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sub new {
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$main::lxdebug->enter_sub(); |
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|
| ... | ... | |
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my $self = shift; |
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my $login = shift; |
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my $password = shift; |
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my $is_crypted = shift; |
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my $dbh = $self->{auth}->dbconnect();
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|
| ... | ... | |
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my $query = qq|SELECT password FROM auth."user" WHERE login = ?|; |
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my ($stored_password) = $dbh->selectrow_array($query, undef, $login); |
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$password = crypt $password, substr($login, 0, 2) if (!$password || !$is_crypted); |
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$stored_password = crypt $stored_password, substr($login, 0, 2) if (!$stored_password); |
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my ($algorithm, $algorithm2); |
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# Empty password hashes in the database mean just that -- empty |
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# passwords. Hash it for easier comparison. |
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$stored_password = $self->hash_password(password => $stored_password) unless $stored_password; |
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($algorithm, $stored_password) = $self->parse_password_entry($stored_password); |
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($algorithm2, $password) = $self->parse_password_entry($self->hash_password(password => $password, algorithm => $algorithm, login => $login)); |
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$main::lxdebug->leave_sub(); |
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|
| ... | ... | |
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return ERR_BACKEND; |
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} |
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$password = crypt $password, substr($login, 0, 2) if (!$is_crypted);
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$password = $self->hash_password(password => $password) unless $is_crypted;
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do_query($main::form, $dbh, qq|UPDATE auth."user" SET password = ? WHERE login = ?|, $password, $login); |
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|
| ... | ... | |
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return 1; |
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} |
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sub hash_password {
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my ($self, %params) = @_; |
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if (!$params{algorithm}) {
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$params{algorithm} = 'SHA1';
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$params{fallback_algorithm} = 'MD5';
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} |
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if ($params{algorithm} eq 'SHA1') {
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if (eval { require Digest::SHA1; 1 }) {
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return '{SHA1}' . Digest::SHA1::sha1_hex($params{password});
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} elsif ($params{fallback_algorithm}) {
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return $self->hash_password(%params, algorithm => $params{fallback_algorithm});
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} else {
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die 'Digest::SHA1 not available'; |
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} |
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} elsif ($params{algorithm} eq 'MD5') {
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require Digest::MD5; |
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return '{MD5}' . Digest::MD5::md5_hex($params{password});
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} elsif ($params{algorithm} eq 'CRYPT') {
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return '{CRYPT}' . crypt($params{password}, substr($params{login}, 0, 2));
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} else {
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croak 'Unsupported hash algorithm ' . $params{algorithm};
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} |
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} |
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sub parse_password_entry {
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my ($self, $password) = @_; |
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return ($1, $2) if $password =~ m/^\{ ([^\}]+) \} (.+)/x;
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return ('CRYPT', $password);
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} |
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1; |
Auch abrufbar als: Unified diff
Hashen der Passwörter mittels Digest::SHA1 (Fallback auf Digest::MD5)
Teil eines Fixes für Bug 1606. Hintergrund ist, dass bei Nutzernamen
mit Umlaut als zweitem Char crypt() ungültiges UTF-8 erstellt: Crypt
nimmt die ersten zwei Bytes (nicht Zeichen) einer Zeichenfolge und
stellt diese als Salt dem Ergebnis vorweg. Das führt zu einem
ungültigen UTF-8-Char, falls das erste Zeichen ASCII 7 bit und das
zweite Zeichen UTF-8 ist. Beispiel: "möp"